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khays |
/* Disassembly routines for TMS320C30 architecture
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Copyright 1998, 1999, 2000, 2002, 2005, 2007, 2009
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Free Software Foundation, Inc.
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Contributed by Steven Haworth (steve@pm.cse.rmit.edu.au)
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This file is part of the GNU opcodes library.
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This library is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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It is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with this file; see the file COPYING. If not, write to the
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Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#include <errno.h>
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#include <math.h>
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#include "sysdep.h"
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#include "dis-asm.h"
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#include "opcode/tic30.h"
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#define NORMAL_INSN 1
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#define PARALLEL_INSN 2
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/* Gets the type of instruction based on the top 2 or 3 bits of the
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instruction word. */
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#define GET_TYPE(insn) (insn & 0x80000000 ? insn & 0xC0000000 : insn & 0xE0000000)
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/* Instruction types. */
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#define TWO_OPERAND_1 0x00000000
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#define TWO_OPERAND_2 0x40000000
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#define THREE_OPERAND 0x20000000
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#define PAR_STORE 0xC0000000
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#define MUL_ADDS 0x80000000
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#define BRANCHES 0x60000000
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/* Specific instruction id bits. */
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#define NORMAL_IDEN 0x1F800000
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#define PAR_STORE_IDEN 0x3E000000
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#define MUL_ADD_IDEN 0x2C000000
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#define BR_IMM_IDEN 0x1F000000
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#define BR_COND_IDEN 0x1C3F0000
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/* Addressing modes. */
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#define AM_REGISTER 0x00000000
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#define AM_DIRECT 0x00200000
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#define AM_INDIRECT 0x00400000
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#define AM_IMM 0x00600000
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#define P_FIELD 0x03000000
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#define REG_AR0 0x08
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#define LDP_INSN 0x08700000
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/* TMS320C30 program counter for current instruction. */
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static unsigned int _pc;
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struct instruction
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{
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int type;
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insn_template *tm;
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partemplate *ptm;
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};
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static int
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get_tic30_instruction (unsigned long insn_word, struct instruction *insn)
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{
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switch (GET_TYPE (insn_word))
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{
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case TWO_OPERAND_1:
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case TWO_OPERAND_2:
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case THREE_OPERAND:
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insn->type = NORMAL_INSN;
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{
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insn_template *current_optab = (insn_template *) tic30_optab;
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for (; current_optab < tic30_optab_end; current_optab++)
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{
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if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
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{
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if (current_optab->operands == 0)
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{
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if (current_optab->base_opcode == insn_word)
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{
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insn->tm = current_optab;
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break;
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}
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}
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else if ((current_optab->base_opcode & NORMAL_IDEN) == (insn_word & NORMAL_IDEN))
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{
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insn->tm = current_optab;
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break;
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}
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}
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}
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}
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break;
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case PAR_STORE:
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insn->type = PARALLEL_INSN;
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{
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partemplate *current_optab = (partemplate *) tic30_paroptab;
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for (; current_optab < tic30_paroptab_end; current_optab++)
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{
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if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
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{
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if ((current_optab->base_opcode & PAR_STORE_IDEN)
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== (insn_word & PAR_STORE_IDEN))
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{
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insn->ptm = current_optab;
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break;
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}
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}
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}
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}
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break;
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case MUL_ADDS:
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insn->type = PARALLEL_INSN;
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{
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partemplate *current_optab = (partemplate *) tic30_paroptab;
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for (; current_optab < tic30_paroptab_end; current_optab++)
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{
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if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
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{
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if ((current_optab->base_opcode & MUL_ADD_IDEN)
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== (insn_word & MUL_ADD_IDEN))
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{
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insn->ptm = current_optab;
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break;
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}
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}
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}
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}
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break;
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case BRANCHES:
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insn->type = NORMAL_INSN;
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{
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insn_template *current_optab = (insn_template *) tic30_optab;
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for (; current_optab < tic30_optab_end; current_optab++)
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{
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if (GET_TYPE (current_optab->base_opcode) == GET_TYPE (insn_word))
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{
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if (current_optab->operand_types[0] & Imm24)
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{
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if ((current_optab->base_opcode & BR_IMM_IDEN)
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== (insn_word & BR_IMM_IDEN))
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{
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insn->tm = current_optab;
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break;
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}
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}
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else if (current_optab->operands > 0)
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{
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if ((current_optab->base_opcode & BR_COND_IDEN)
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== (insn_word & BR_COND_IDEN))
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{
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insn->tm = current_optab;
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break;
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}
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}
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else
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{
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if ((current_optab->base_opcode & (BR_COND_IDEN | 0x00800000))
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== (insn_word & (BR_COND_IDEN | 0x00800000)))
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{
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insn->tm = current_optab;
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break;
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}
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}
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}
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}
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}
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break;
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default:
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return 0;
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}
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return 1;
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}
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static int
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get_register_operand (unsigned char fragment, char *buffer)
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{
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const reg *current_reg = tic30_regtab;
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if (buffer == NULL)
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return 0;
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for (; current_reg < tic30_regtab_end; current_reg++)
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{
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if ((fragment & 0x1F) == current_reg->opcode)
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{
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strcpy (buffer, current_reg->name);
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return 1;
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}
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}
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return 0;
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}
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static int
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get_indirect_operand (unsigned short fragment,
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int size,
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char *buffer)
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{
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| 215 |
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unsigned char mod;
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unsigned arnum;
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unsigned char disp;
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| 218 |
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| 219 |
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if (buffer == NULL)
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return 0;
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| 221 |
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/* Determine which bits identify the sections of the indirect
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| 222 |
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operand based on the size in bytes. */
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| 223 |
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switch (size)
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| 224 |
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{
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| 225 |
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case 1:
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mod = (fragment & 0x00F8) >> 3;
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arnum = (fragment & 0x0007);
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disp = 0;
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break;
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case 2:
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mod = (fragment & 0xF800) >> 11;
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arnum = (fragment & 0x0700) >> 8;
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| 233 |
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disp = (fragment & 0x00FF);
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break;
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default:
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| 236 |
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return 0;
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| 237 |
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}
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| 238 |
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{
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| 239 |
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const ind_addr_type *current_ind = tic30_indaddr_tab;
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| 240 |
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| 241 |
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for (; current_ind < tic30_indaddrtab_end; current_ind++)
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| 242 |
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{
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| 243 |
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if (current_ind->modfield == mod)
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| 244 |
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{
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| 245 |
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if (current_ind->displacement == IMPLIED_DISP && size == 2)
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| 246 |
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continue;
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| 247 |
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| 248 |
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else
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| 249 |
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{
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| 250 |
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size_t i, len;
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| 251 |
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int bufcnt;
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| 252 |
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| 253 |
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len = strlen (current_ind->syntax);
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| 254 |
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for (i = 0, bufcnt = 0; i < len; i++, bufcnt++)
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| 255 |
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{
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| 256 |
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buffer[bufcnt] = current_ind->syntax[i];
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| 257 |
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if (buffer[bufcnt - 1] == 'a' && buffer[bufcnt] == 'r')
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| 258 |
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buffer[++bufcnt] = arnum + '0';
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| 259 |
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if (buffer[bufcnt] == '('
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| 260 |
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&& current_ind->displacement == DISP_REQUIRED)
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| 261 |
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{
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| 262 |
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sprintf (&buffer[bufcnt + 1], "%u", disp);
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| 263 |
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bufcnt += strlen (&buffer[bufcnt + 1]);
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| 264 |
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}
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| 265 |
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}
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| 266 |
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buffer[bufcnt + 1] = '\0';
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| 267 |
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break;
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| 268 |
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}
|
| 269 |
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}
|
| 270 |
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}
|
| 271 |
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}
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| 272 |
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return 1;
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| 273 |
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}
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| 274 |
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| 275 |
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static int
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| 276 |
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cnvt_tmsfloat_ieee (unsigned long tmsfloat, int size, float *ieeefloat)
|
| 277 |
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{
|
| 278 |
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unsigned long exponent, sign, mant;
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| 279 |
|
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union
|
| 280 |
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{
|
| 281 |
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unsigned long l;
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| 282 |
|
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float f;
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| 283 |
|
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} val;
|
| 284 |
|
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|
| 285 |
|
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if (size == 2)
|
| 286 |
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{
|
| 287 |
|
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if ((tmsfloat & 0x0000F000) == 0x00008000)
|
| 288 |
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tmsfloat = 0x80000000;
|
| 289 |
|
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else
|
| 290 |
|
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{
|
| 291 |
|
|
tmsfloat <<= 16;
|
| 292 |
|
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tmsfloat = (long) tmsfloat >> 4;
|
| 293 |
|
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}
|
| 294 |
|
|
}
|
| 295 |
|
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exponent = tmsfloat & 0xFF000000;
|
| 296 |
|
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if (exponent == 0x80000000)
|
| 297 |
|
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{
|
| 298 |
|
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*ieeefloat = 0.0;
|
| 299 |
|
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return 1;
|
| 300 |
|
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}
|
| 301 |
|
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exponent += 0x7F000000;
|
| 302 |
|
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sign = (tmsfloat & 0x00800000) << 8;
|
| 303 |
|
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mant = tmsfloat & 0x007FFFFF;
|
| 304 |
|
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if (exponent == 0xFF000000)
|
| 305 |
|
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{
|
| 306 |
|
|
if (mant == 0)
|
| 307 |
|
|
*ieeefloat = ERANGE;
|
| 308 |
|
|
#ifdef HUGE_VALF
|
| 309 |
|
|
if (sign == 0)
|
| 310 |
|
|
*ieeefloat = HUGE_VALF;
|
| 311 |
|
|
else
|
| 312 |
|
|
*ieeefloat = -HUGE_VALF;
|
| 313 |
|
|
#else
|
| 314 |
|
|
if (sign == 0)
|
| 315 |
|
|
*ieeefloat = 1.0 / 0.0;
|
| 316 |
|
|
else
|
| 317 |
|
|
*ieeefloat = -1.0 / 0.0;
|
| 318 |
|
|
#endif
|
| 319 |
|
|
return 1;
|
| 320 |
|
|
}
|
| 321 |
|
|
exponent >>= 1;
|
| 322 |
|
|
if (sign)
|
| 323 |
|
|
{
|
| 324 |
|
|
mant = (~mant) & 0x007FFFFF;
|
| 325 |
|
|
mant += 1;
|
| 326 |
|
|
exponent += mant & 0x00800000;
|
| 327 |
|
|
exponent &= 0x7F800000;
|
| 328 |
|
|
mant &= 0x007FFFFF;
|
| 329 |
|
|
}
|
| 330 |
|
|
if (tmsfloat == 0x80000000)
|
| 331 |
|
|
sign = mant = exponent = 0;
|
| 332 |
|
|
tmsfloat = sign | exponent | mant;
|
| 333 |
|
|
val.l = tmsfloat;
|
| 334 |
|
|
*ieeefloat = val.f;
|
| 335 |
|
|
return 1;
|
| 336 |
|
|
}
|
| 337 |
|
|
|
| 338 |
|
|
static int
|
| 339 |
|
|
print_two_operand (disassemble_info *info,
|
| 340 |
|
|
unsigned long insn_word,
|
| 341 |
|
|
struct instruction *insn)
|
| 342 |
|
|
{
|
| 343 |
|
|
char name[12];
|
| 344 |
|
|
char operand[2][13] =
|
| 345 |
|
|
{
|
| 346 |
|
|
{0},
|
| 347 |
|
|
{0}
|
| 348 |
|
|
};
|
| 349 |
|
|
float f_number;
|
| 350 |
|
|
|
| 351 |
|
|
if (insn->tm == NULL)
|
| 352 |
|
|
return 0;
|
| 353 |
|
|
strcpy (name, insn->tm->name);
|
| 354 |
|
|
if (insn->tm->opcode_modifier == AddressMode)
|
| 355 |
|
|
{
|
| 356 |
|
|
int src_op, dest_op;
|
| 357 |
|
|
/* Determine whether instruction is a store or a normal instruction. */
|
| 358 |
|
|
if ((insn->tm->operand_types[1] & (Direct | Indirect))
|
| 359 |
|
|
== (Direct | Indirect))
|
| 360 |
|
|
{
|
| 361 |
|
|
src_op = 1;
|
| 362 |
|
|
dest_op = 0;
|
| 363 |
|
|
}
|
| 364 |
|
|
else
|
| 365 |
|
|
{
|
| 366 |
|
|
src_op = 0;
|
| 367 |
|
|
dest_op = 1;
|
| 368 |
|
|
}
|
| 369 |
|
|
/* Get the destination register. */
|
| 370 |
|
|
if (insn->tm->operands == 2)
|
| 371 |
|
|
get_register_operand ((insn_word & 0x001F0000) >> 16, operand[dest_op]);
|
| 372 |
|
|
/* Get the source operand based on addressing mode. */
|
| 373 |
|
|
switch (insn_word & AddressMode)
|
| 374 |
|
|
{
|
| 375 |
|
|
case AM_REGISTER:
|
| 376 |
|
|
/* Check for the NOP instruction before getting the operand. */
|
| 377 |
|
|
if ((insn->tm->operand_types[0] & NotReq) == 0)
|
| 378 |
|
|
get_register_operand ((insn_word & 0x0000001F), operand[src_op]);
|
| 379 |
|
|
break;
|
| 380 |
|
|
case AM_DIRECT:
|
| 381 |
|
|
sprintf (operand[src_op], "@0x%lX", (insn_word & 0x0000FFFF));
|
| 382 |
|
|
break;
|
| 383 |
|
|
case AM_INDIRECT:
|
| 384 |
|
|
get_indirect_operand ((insn_word & 0x0000FFFF), 2, operand[src_op]);
|
| 385 |
|
|
break;
|
| 386 |
|
|
case AM_IMM:
|
| 387 |
|
|
/* Get the value of the immediate operand based on variable type. */
|
| 388 |
|
|
switch (insn->tm->imm_arg_type)
|
| 389 |
|
|
{
|
| 390 |
|
|
case Imm_Float:
|
| 391 |
|
|
cnvt_tmsfloat_ieee ((insn_word & 0x0000FFFF), 2, &f_number);
|
| 392 |
|
|
sprintf (operand[src_op], "%2.2f", f_number);
|
| 393 |
|
|
break;
|
| 394 |
|
|
case Imm_SInt:
|
| 395 |
|
|
sprintf (operand[src_op], "%d", (short) (insn_word & 0x0000FFFF));
|
| 396 |
|
|
break;
|
| 397 |
|
|
case Imm_UInt:
|
| 398 |
|
|
sprintf (operand[src_op], "%lu", (insn_word & 0x0000FFFF));
|
| 399 |
|
|
break;
|
| 400 |
|
|
default:
|
| 401 |
|
|
return 0;
|
| 402 |
|
|
}
|
| 403 |
|
|
/* Handle special case for LDP instruction. */
|
| 404 |
|
|
if ((insn_word & 0xFFFFFF00) == LDP_INSN)
|
| 405 |
|
|
{
|
| 406 |
|
|
strcpy (name, "ldp");
|
| 407 |
|
|
sprintf (operand[0], "0x%06lX", (insn_word & 0x000000FF) << 16);
|
| 408 |
|
|
operand[1][0] = '\0';
|
| 409 |
|
|
}
|
| 410 |
|
|
}
|
| 411 |
|
|
}
|
| 412 |
|
|
/* Handle case for stack and rotate instructions. */
|
| 413 |
|
|
else if (insn->tm->operands == 1)
|
| 414 |
|
|
{
|
| 415 |
|
|
if (insn->tm->opcode_modifier == StackOp)
|
| 416 |
|
|
get_register_operand ((insn_word & 0x001F0000) >> 16, operand[0]);
|
| 417 |
|
|
}
|
| 418 |
|
|
/* Output instruction to stream. */
|
| 419 |
|
|
info->fprintf_func (info->stream, " %s %s%c%s", name,
|
| 420 |
|
|
operand[0][0] ? operand[0] : "",
|
| 421 |
|
|
operand[1][0] ? ',' : ' ',
|
| 422 |
|
|
operand[1][0] ? operand[1] : "");
|
| 423 |
|
|
return 1;
|
| 424 |
|
|
}
|
| 425 |
|
|
|
| 426 |
|
|
static int
|
| 427 |
|
|
print_three_operand (disassemble_info *info,
|
| 428 |
|
|
unsigned long insn_word,
|
| 429 |
|
|
struct instruction *insn)
|
| 430 |
|
|
{
|
| 431 |
|
|
char operand[3][13] =
|
| 432 |
|
|
{
|
| 433 |
|
|
{0},
|
| 434 |
|
|
{0},
|
| 435 |
|
|
{0}
|
| 436 |
|
|
};
|
| 437 |
|
|
|
| 438 |
|
|
if (insn->tm == NULL)
|
| 439 |
|
|
return 0;
|
| 440 |
|
|
switch (insn_word & AddressMode)
|
| 441 |
|
|
{
|
| 442 |
|
|
case AM_REGISTER:
|
| 443 |
|
|
get_register_operand ((insn_word & 0x000000FF), operand[0]);
|
| 444 |
|
|
get_register_operand ((insn_word & 0x0000FF00) >> 8, operand[1]);
|
| 445 |
|
|
break;
|
| 446 |
|
|
case AM_DIRECT:
|
| 447 |
|
|
get_register_operand ((insn_word & 0x000000FF), operand[0]);
|
| 448 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1]);
|
| 449 |
|
|
break;
|
| 450 |
|
|
case AM_INDIRECT:
|
| 451 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0]);
|
| 452 |
|
|
get_register_operand ((insn_word & 0x0000FF00) >> 8, operand[1]);
|
| 453 |
|
|
break;
|
| 454 |
|
|
case AM_IMM:
|
| 455 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0]);
|
| 456 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1]);
|
| 457 |
|
|
break;
|
| 458 |
|
|
default:
|
| 459 |
|
|
return 0;
|
| 460 |
|
|
}
|
| 461 |
|
|
if (insn->tm->operands == 3)
|
| 462 |
|
|
get_register_operand ((insn_word & 0x001F0000) >> 16, operand[2]);
|
| 463 |
|
|
info->fprintf_func (info->stream, " %s %s,%s%c%s", insn->tm->name,
|
| 464 |
|
|
operand[0], operand[1],
|
| 465 |
|
|
operand[2][0] ? ',' : ' ',
|
| 466 |
|
|
operand[2][0] ? operand[2] : "");
|
| 467 |
|
|
return 1;
|
| 468 |
|
|
}
|
| 469 |
|
|
|
| 470 |
|
|
static int
|
| 471 |
|
|
print_par_insn (disassemble_info *info,
|
| 472 |
|
|
unsigned long insn_word,
|
| 473 |
|
|
struct instruction *insn)
|
| 474 |
|
|
{
|
| 475 |
|
|
size_t i, len;
|
| 476 |
|
|
char *name1, *name2;
|
| 477 |
|
|
char operand[2][3][13] =
|
| 478 |
|
|
{
|
| 479 |
|
|
{
|
| 480 |
|
|
{0},
|
| 481 |
|
|
{0},
|
| 482 |
|
|
{0}
|
| 483 |
|
|
},
|
| 484 |
|
|
{
|
| 485 |
|
|
{0},
|
| 486 |
|
|
{0},
|
| 487 |
|
|
{0}
|
| 488 |
|
|
}
|
| 489 |
|
|
};
|
| 490 |
|
|
|
| 491 |
|
|
if (insn->ptm == NULL)
|
| 492 |
|
|
return 0;
|
| 493 |
|
|
/* Parse out the names of each of the parallel instructions from the
|
| 494 |
|
|
q_insn1_insn2 format. */
|
| 495 |
|
|
name1 = (char *) strdup (insn->ptm->name + 2);
|
| 496 |
|
|
name2 = "";
|
| 497 |
|
|
len = strlen (name1);
|
| 498 |
|
|
for (i = 0; i < len; i++)
|
| 499 |
|
|
{
|
| 500 |
|
|
if (name1[i] == '_')
|
| 501 |
|
|
{
|
| 502 |
|
|
name2 = &name1[i + 1];
|
| 503 |
|
|
name1[i] = '\0';
|
| 504 |
|
|
break;
|
| 505 |
|
|
}
|
| 506 |
|
|
}
|
| 507 |
|
|
/* Get the operands of the instruction based on the operand order. */
|
| 508 |
|
|
switch (insn->ptm->oporder)
|
| 509 |
|
|
{
|
| 510 |
|
|
case OO_4op1:
|
| 511 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);
|
| 512 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
|
| 513 |
|
|
get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
|
| 514 |
|
|
get_register_operand ((insn_word >> 22) & 0x07, operand[0][1]);
|
| 515 |
|
|
break;
|
| 516 |
|
|
case OO_4op2:
|
| 517 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);
|
| 518 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][0]);
|
| 519 |
|
|
get_register_operand ((insn_word >> 19) & 0x07, operand[1][1]);
|
| 520 |
|
|
get_register_operand ((insn_word >> 22) & 0x07, operand[0][1]);
|
| 521 |
|
|
break;
|
| 522 |
|
|
case OO_4op3:
|
| 523 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);
|
| 524 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
|
| 525 |
|
|
get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
|
| 526 |
|
|
get_register_operand ((insn_word >> 22) & 0x07, operand[0][0]);
|
| 527 |
|
|
break;
|
| 528 |
|
|
case OO_5op1:
|
| 529 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][0]);
|
| 530 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
|
| 531 |
|
|
get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
|
| 532 |
|
|
get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);
|
| 533 |
|
|
get_register_operand ((insn_word >> 22) & 0x07, operand[0][2]);
|
| 534 |
|
|
break;
|
| 535 |
|
|
case OO_5op2:
|
| 536 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);
|
| 537 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][1]);
|
| 538 |
|
|
get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
|
| 539 |
|
|
get_register_operand ((insn_word >> 19) & 0x07, operand[0][0]);
|
| 540 |
|
|
get_register_operand ((insn_word >> 22) & 0x07, operand[0][2]);
|
| 541 |
|
|
break;
|
| 542 |
|
|
case OO_PField:
|
| 543 |
|
|
if (insn_word & 0x00800000)
|
| 544 |
|
|
get_register_operand (0x01, operand[0][2]);
|
| 545 |
|
|
else
|
| 546 |
|
|
get_register_operand (0x00, operand[0][2]);
|
| 547 |
|
|
if (insn_word & 0x00400000)
|
| 548 |
|
|
get_register_operand (0x03, operand[1][2]);
|
| 549 |
|
|
else
|
| 550 |
|
|
get_register_operand (0x02, operand[1][2]);
|
| 551 |
|
|
switch (insn_word & P_FIELD)
|
| 552 |
|
|
{
|
| 553 |
|
|
case 0x00000000:
|
| 554 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[0][1]);
|
| 555 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);
|
| 556 |
|
|
get_register_operand ((insn_word >> 16) & 0x07, operand[1][1]);
|
| 557 |
|
|
get_register_operand ((insn_word >> 19) & 0x07, operand[1][0]);
|
| 558 |
|
|
break;
|
| 559 |
|
|
case 0x01000000:
|
| 560 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][0]);
|
| 561 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);
|
| 562 |
|
|
get_register_operand ((insn_word >> 16) & 0x07, operand[1][1]);
|
| 563 |
|
|
get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);
|
| 564 |
|
|
break;
|
| 565 |
|
|
case 0x02000000:
|
| 566 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][1]);
|
| 567 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[1][0]);
|
| 568 |
|
|
get_register_operand ((insn_word >> 16) & 0x07, operand[0][1]);
|
| 569 |
|
|
get_register_operand ((insn_word >> 19) & 0x07, operand[0][0]);
|
| 570 |
|
|
break;
|
| 571 |
|
|
case 0x03000000:
|
| 572 |
|
|
get_indirect_operand ((insn_word & 0x000000FF), 1, operand[1][1]);
|
| 573 |
|
|
get_indirect_operand ((insn_word & 0x0000FF00) >> 8, 1, operand[0][0]);
|
| 574 |
|
|
get_register_operand ((insn_word >> 16) & 0x07, operand[1][0]);
|
| 575 |
|
|
get_register_operand ((insn_word >> 19) & 0x07, operand[0][1]);
|
| 576 |
|
|
break;
|
| 577 |
|
|
}
|
| 578 |
|
|
break;
|
| 579 |
|
|
default:
|
| 580 |
|
|
return 0;
|
| 581 |
|
|
}
|
| 582 |
|
|
info->fprintf_func (info->stream, " %s %s,%s%c%s", name1,
|
| 583 |
|
|
operand[0][0], operand[0][1],
|
| 584 |
|
|
operand[0][2][0] ? ',' : ' ',
|
| 585 |
|
|
operand[0][2][0] ? operand[0][2] : "");
|
| 586 |
|
|
info->fprintf_func (info->stream, "\n\t\t\t|| %s %s,%s%c%s", name2,
|
| 587 |
|
|
operand[1][0], operand[1][1],
|
| 588 |
|
|
operand[1][2][0] ? ',' : ' ',
|
| 589 |
|
|
operand[1][2][0] ? operand[1][2] : "");
|
| 590 |
|
|
free (name1);
|
| 591 |
|
|
return 1;
|
| 592 |
|
|
}
|
| 593 |
|
|
|
| 594 |
|
|
static int
|
| 595 |
|
|
print_branch (disassemble_info *info,
|
| 596 |
|
|
unsigned long insn_word,
|
| 597 |
|
|
struct instruction *insn)
|
| 598 |
|
|
{
|
| 599 |
|
|
char operand[2][13] =
|
| 600 |
|
|
{
|
| 601 |
|
|
{0},
|
| 602 |
|
|
{0}
|
| 603 |
|
|
};
|
| 604 |
|
|
unsigned long address;
|
| 605 |
|
|
int print_label = 0;
|
| 606 |
|
|
|
| 607 |
|
|
if (insn->tm == NULL)
|
| 608 |
|
|
return 0;
|
| 609 |
|
|
/* Get the operands for 24-bit immediate jumps. */
|
| 610 |
|
|
if (insn->tm->operand_types[0] & Imm24)
|
| 611 |
|
|
{
|
| 612 |
|
|
address = insn_word & 0x00FFFFFF;
|
| 613 |
|
|
sprintf (operand[0], "0x%lX", address);
|
| 614 |
|
|
print_label = 1;
|
| 615 |
|
|
}
|
| 616 |
|
|
/* Get the operand for the trap instruction. */
|
| 617 |
|
|
else if (insn->tm->operand_types[0] & IVector)
|
| 618 |
|
|
{
|
| 619 |
|
|
address = insn_word & 0x0000001F;
|
| 620 |
|
|
sprintf (operand[0], "0x%lX", address);
|
| 621 |
|
|
}
|
| 622 |
|
|
else
|
| 623 |
|
|
{
|
| 624 |
|
|
address = insn_word & 0x0000FFFF;
|
| 625 |
|
|
/* Get the operands for the DB instructions. */
|
| 626 |
|
|
if (insn->tm->operands == 2)
|
| 627 |
|
|
{
|
| 628 |
|
|
get_register_operand (((insn_word & 0x01C00000) >> 22) + REG_AR0, operand[0]);
|
| 629 |
|
|
if (insn_word & PCRel)
|
| 630 |
|
|
{
|
| 631 |
|
|
sprintf (operand[1], "%d", (short) address);
|
| 632 |
|
|
print_label = 1;
|
| 633 |
|
|
}
|
| 634 |
|
|
else
|
| 635 |
|
|
get_register_operand (insn_word & 0x0000001F, operand[1]);
|
| 636 |
|
|
}
|
| 637 |
|
|
/* Get the operands for the standard branches. */
|
| 638 |
|
|
else if (insn->tm->operands == 1)
|
| 639 |
|
|
{
|
| 640 |
|
|
if (insn_word & PCRel)
|
| 641 |
|
|
{
|
| 642 |
|
|
address = (short) address;
|
| 643 |
|
|
sprintf (operand[0], "%ld", address);
|
| 644 |
|
|
print_label = 1;
|
| 645 |
|
|
}
|
| 646 |
|
|
else
|
| 647 |
|
|
get_register_operand (insn_word & 0x0000001F, operand[0]);
|
| 648 |
|
|
}
|
| 649 |
|
|
}
|
| 650 |
|
|
info->fprintf_func (info->stream, " %s %s%c%s", insn->tm->name,
|
| 651 |
|
|
operand[0][0] ? operand[0] : "",
|
| 652 |
|
|
operand[1][0] ? ',' : ' ',
|
| 653 |
|
|
operand[1][0] ? operand[1] : "");
|
| 654 |
|
|
/* Print destination of branch in relation to current symbol. */
|
| 655 |
|
|
if (print_label && info->symbols)
|
| 656 |
|
|
{
|
| 657 |
|
|
asymbol *sym = *info->symbols;
|
| 658 |
|
|
|
| 659 |
|
|
if ((insn->tm->opcode_modifier == PCRel) && (insn_word & PCRel))
|
| 660 |
|
|
{
|
| 661 |
|
|
address = (_pc + 1 + (short) address) - ((sym->section->vma + sym->value) / 4);
|
| 662 |
|
|
/* Check for delayed instruction, if so adjust destination. */
|
| 663 |
|
|
if (insn_word & 0x00200000)
|
| 664 |
|
|
address += 2;
|
| 665 |
|
|
}
|
| 666 |
|
|
else
|
| 667 |
|
|
{
|
| 668 |
|
|
address -= ((sym->section->vma + sym->value) / 4);
|
| 669 |
|
|
}
|
| 670 |
|
|
if (address == 0)
|
| 671 |
|
|
info->fprintf_func (info->stream, " <%s>", sym->name);
|
| 672 |
|
|
else
|
| 673 |
|
|
info->fprintf_func (info->stream, " <%s %c %d>", sym->name,
|
| 674 |
|
|
((short) address < 0) ? '-' : '+',
|
| 675 |
|
|
abs (address));
|
| 676 |
|
|
}
|
| 677 |
|
|
return 1;
|
| 678 |
|
|
}
|
| 679 |
|
|
|
| 680 |
|
|
int
|
| 681 |
|
|
print_insn_tic30 (bfd_vma pc, disassemble_info *info)
|
| 682 |
|
|
{
|
| 683 |
|
|
unsigned long insn_word;
|
| 684 |
|
|
struct instruction insn = { 0, NULL, NULL };
|
| 685 |
|
|
bfd_vma bufaddr = pc - info->buffer_vma;
|
| 686 |
|
|
|
| 687 |
|
|
/* Obtain the current instruction word from the buffer. */
|
| 688 |
|
|
insn_word = (*(info->buffer + bufaddr) << 24) | (*(info->buffer + bufaddr + 1) << 16) |
|
| 689 |
|
|
(*(info->buffer + bufaddr + 2) << 8) | *(info->buffer + bufaddr + 3);
|
| 690 |
|
|
_pc = pc / 4;
|
| 691 |
|
|
/* Get the instruction refered to by the current instruction word
|
| 692 |
|
|
and print it out based on its type. */
|
| 693 |
|
|
if (!get_tic30_instruction (insn_word, &insn))
|
| 694 |
|
|
return -1;
|
| 695 |
|
|
switch (GET_TYPE (insn_word))
|
| 696 |
|
|
{
|
| 697 |
|
|
case TWO_OPERAND_1:
|
| 698 |
|
|
case TWO_OPERAND_2:
|
| 699 |
|
|
if (!print_two_operand (info, insn_word, &insn))
|
| 700 |
|
|
return -1;
|
| 701 |
|
|
break;
|
| 702 |
|
|
case THREE_OPERAND:
|
| 703 |
|
|
if (!print_three_operand (info, insn_word, &insn))
|
| 704 |
|
|
return -1;
|
| 705 |
|
|
break;
|
| 706 |
|
|
case PAR_STORE:
|
| 707 |
|
|
case MUL_ADDS:
|
| 708 |
|
|
if (!print_par_insn (info, insn_word, &insn))
|
| 709 |
|
|
return -1;
|
| 710 |
|
|
break;
|
| 711 |
|
|
case BRANCHES:
|
| 712 |
|
|
if (!print_branch (info, insn_word, &insn))
|
| 713 |
|
|
return -1;
|
| 714 |
|
|
break;
|
| 715 |
|
|
}
|
| 716 |
|
|
return 4;
|
| 717 |
|
|
}
|